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How to sort a list of lists by a specific index of the inner list?
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@bzupnick, use key=lambda x:x[2].casefold(). If your Python isn't new enough, just use .lower() instead of .casefold()
– John La Rooy
Jul 29 '13 at 11:52
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How to tell git to ignore individual lines, i.e. gitignore for specific lines of code [duplicate]
...les. That didn't work, and it also broke the previously working filter for python-files. Now I get this error all the time "error: external filter sed". Do you know how I can fix this or simply delete all filters?
– PaulMag
Nov 24 '14 at 13:27
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What is a plain English explanation of “Big O” notation?
...this scale, and that the comparison works when n is 'sufficiently large'. Python's timsort actually uses insertion sort (worst/average case O(n^2)) for small arrays due to the fact that it has a small overhead.
– Casey Kuball
May 21 '12 at 23:14
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Pandas DataFrame Groupby two columns and get counts
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Not the answer you're looking for? Browse other questions tagged python pandas dataframe or ask your own question.
How to check whether a file is empty or not?
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If you are using Python3 with pathlib you can access os.stat() information using the Path.stat() method, which has the attribute st_size(file size in bytes):
>>> from pathlib import Path
>>> mypath = Path("path/to/my/file"...
Get the key corresponding to the minimum value within a dictionary
If I have a Python dictionary, how do I get the key to the entry which contains the minimum value?
16 Answers
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How can I kill a process by name instead of PID?
... I had to add the -f flag too for killing a background process running a Python script.
– Mason
Aug 8 '18 at 14:03
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How to extract the substring between two markers?
...urn an empty string if either "AAA" or "ZZZ" don't exist in your_text.
PS Python Challenge?
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Add single element to array in numpy
...2 s ± 16.1 ms per loop (mean ± std. dev. of 7 runs, 1 loop each)
Using python list converting to array afterward:
d = [0]
for k in range(int(10e4)):
d.append(k)
f = np.array(d)
13.5 ms ± 277 µs per loop (mean ± std. dev. of 7 runs, 100 loops each)
Pre-allocating numpy array:
e = np.ze...
A free tool to check C/C++ source code against a set of coding standards? [closed]
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Try nsiqcppstyle. It's a Python based coding style checker for C/C++. It's easy to extend to add your own rules.
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